Kestrel 4400 Heat Stress Tracker
Nielsen-Kellerman's Kestrel 4400 Heat Stress Tracker provides accurate localized measurement of heat stress conditions, including Web Bulb Globe Temperature and Thermal Work Limit, to help determine optimal work/rest requirements in hot environments. The pocket-sized, lightweight tracker uses a a compact globe thermometer and environmental sensor suite and advances calculation algorithms to display waterless WBGT within minutes.